1630648045845 has 288 divisors, whose sum is σ = 3759001489152. Its totient is φ = 637931593728.

The previous prime is 1630648045843. The next prime is 1630648045847. The reversal of 1630648045845 is 5485408460361.

1630648045845 is a `hidden beast` number, since 16 + 3 + 0 + 6 + 48 + 0 + 4 + 584 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (1630648045843) and next prime (1630648045847).

It is not a de Polignac number, because 1630648045845 - 2¹ = 1630648045843 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1630648045791 and 1630648045800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1630648045843) by changing a digit.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 60621219 + ... + 60648111.

It is an arithmetic number, because the mean of its divisors is an integer number (13052088504).

Almost surely, 2^{1630648045845} is an apocalyptic number.

1630648045845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1630648045845 is an abundant number, since it is smaller than the sum of its proper divisors (2128353443307).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1630648045845 is a wasteful number, since it uses less digits than its factorization.

1630648045845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27021 (or 27005 counting only the distinct ones).

The product of its (nonzero) digits is 11059200, while the sum is 54.

The spelling of 1630648045845 in words is "one trillion, six hundred thirty billion, six hundred forty-eight million, forty-five thousand, eight hundred forty-five".